<template>
	<div class="user-info-head" @click="editCropper()">
		<img :src="options.img" class="img-circle img-lg" title="点击上传头像"/>
		<el-dialog v-model="open" :title="title" append-to-body width="800px" @close="closeDialog" @opened="modalOpened">
			<el-row>
				<el-col :md="12" :style="{ height: '350px' }" :xs="24">
					<vue-cropper
							v-if="visible"
							ref="cropper"
							:autoCrop="options.autoCrop"
							:autoCropHeight="options.autoCropHeight"
							:autoCropWidth="options.autoCropWidth"
							:fixedBox="options.fixedBox"
							:img="options.img"
							:info="true"
							:outputType="options.outputType"
							@realTime="realTime"
					/>
				</el-col>
				<el-col :md="12" :style="{ height: '350px' }" :xs="24">
					<div class="avatar-upload-preview">
						<img :src="options.previews.url" :style="options.previews.img"/>
					</div>
				</el-col>
			</el-row>
			<br/>
			<el-row>
				<el-col :lg="2" :md="2">
					<el-upload
							:before-upload="beforeUpload"
							:http-request="requestUpload"
							:show-file-list="false"
							action="#"
					>
						<el-button>
							选择
							<el-icon class="el-icon--right">
								<Upload/>
							</el-icon>
						</el-button>
					</el-upload>
				</el-col>
				<el-col :lg="{ span: 1, offset: 2 }" :md="2">
					<el-button icon="Plus" @click="changeScale(1)"></el-button>
				</el-col>
				<el-col :lg="{ span: 1, offset: 1 }" :md="2">
					<el-button icon="Minus" @click="changeScale(-1)"></el-button>
				</el-col>
				<el-col :lg="{ span: 1, offset: 1 }" :md="2">
					<el-button icon="RefreshLeft" @click="rotateLeft()"></el-button>
				</el-col>
				<el-col :lg="{ span: 1, offset: 1 }" :md="2">
					<el-button icon="RefreshRight" @click="rotateRight()"></el-button>
				</el-col>
				<el-col :lg="{ span: 2, offset: 6 }" :md="2">
					<el-button type="primary" @click="uploadImg()">提 交</el-button>
				</el-col>
			</el-row>
		</el-dialog>
	</div>
</template>

<script setup>
import 'vue-cropper/dist/index.css'
import {VueCropper} from 'vue-cropper'
import {uploadAvatar} from '@/api/system/user'
import useUserStore from '@/store/modules/user'

const userStore = useUserStore()
const {proxy} = getCurrentInstance()

const open = ref(false)
const visible = ref(false)
const title = ref('修改头像')

//图片裁剪数据
const options = reactive({
	img: userStore.avatar,     // 裁剪图片的地址
	autoCrop: true,            // 是否默认生成截图框
	autoCropWidth: 200,        // 默认生成截图框宽度
	autoCropHeight: 200,       // 默认生成截图框高度
	fixedBox: true,            // 固定截图框大小 不允许改变
	outputType: 'png',         // 默认生成截图为PNG格式
	filename: 'avatar',        // 文件名称
	previews: {}               //预览数据
})

/** 编辑头像 */
function editCropper() {
	open.value = true
}

/** 打开弹出层结束时的回调 */
function modalOpened() {
	visible.value = true
}

/** 覆盖默认上传行为 */
function requestUpload() {
}

/** 向左旋转 */
function rotateLeft() {
	proxy.$refs.cropper.rotateLeft()
}

/** 向右旋转 */
function rotateRight() {
	proxy.$refs.cropper.rotateRight()
}

/** 图片缩放 */
function changeScale(num) {
	num = num || 1
	proxy.$refs.cropper.changeScale(num)
}

/** 上传预处理 */
function beforeUpload(file) {
	if (file.type.indexOf('image/') == -1) {
		proxy.$modal.msgError('文件格式错误，请上传图片类型,如：JPG，PNG后缀的文件。')
	} else {
		const reader = new FileReader()
		reader.readAsDataURL(file)
		reader.onload = () => {
			options.img = reader.result
			options.filename = file.name
		}
	}
}

/** 上传图片 */
function uploadImg() {
	proxy.$refs.cropper.getCropBlob(data => {
		let formData = new FormData()
		formData.append('avatarfile', data, options.filename)
		uploadAvatar(formData).then(response => {
			open.value = false
			options.img = import.meta.env.VITE_APP_BASE_API + response.imgUrl
			userStore.avatar = options.img
			proxy.$modal.msgSuccess('修改成功')
			visible.value = false
		})
	})
}

/** 实时预览 */
function realTime(data) {
	options.previews = data
}

/** 关闭窗口 */
function closeDialog() {
	options.img = userStore.avatar
	options.visible = false
}
</script>

<style lang='scss' scoped>
.user-info-head {
	position: relative;
	display: inline-block;
	height: 120px;
}

.user-info-head:hover:after {
	content: "+";
	position: absolute;
	left: 0;
	right: 0;
	top: 0;
	bottom: 0;
	color: #eee;
	background: rgba(0, 0, 0, 0.5);
	font-size: 24px;
	font-style: normal;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	cursor: pointer;
	line-height: 110px;
	border-radius: 50%;
}
</style>
